Caliber L4-2.4L (2009)
Audible Warning Device: Description and Operation
Chime/Buzzer - Operation
OPERATION
CHIME WARNING SYSTEM
The chime warning system operates on battery voltage received through a fuse in the Junction Block (JB) on a non-switched fused B(+) circuit so that
the system may operate regardless of the ignition switch position. The chime warning system also monitors the ignition switch position so that some
chime features are functional only with the ignition switch in the On position, while others are functional regardless of the ignition switch position.
The chime warning system provides an audible indication to the vehicle operator or occupants under the following conditions:
-
Airbag Indicator Warning - The Cab Compartment Node (CCN) will generate one short chime when the ignition switch is in the On position,
and an electronic message is received over the Controller Area Network (CAN) data bus from the Occupant Restraint Controller (ORC) requesting
"Airbag" indicator illumination. This warning will only occur following completion of the "Airbag" indicator bulb test, and will only occur once
during any ignition cycle.
-
Door Ajar Indicator Warning - The CCN will generate one short chime when the ignition switch is in the On position, a hard wired input is
received indicating that the status of any door ajar switch has changed, and an electronic message is received over the CAN data bus indicating
that the vehicle is moving. Door ajar chime occurs only if the door ajar status is true.
-
Door opened and
-
Ignition in RUN position and
-
Vehicle speed is present
-
Fasten Seat Belt Indicator Warning - The CCN will generate repetitive chimes at a slow rate to announce that a hard wired input from the seat
belt switch indicates that the driver side front seat belt is not fastened with the ignition switch in the On position. The chime warning system also
supports the enhanced seat belt reminder (belt-minder) when this feature is enabled.
NOTE: If the vehicle is equipped with the Occupant Classification System (OCS), this will apply to the front passenger seatbelt as well.
There are two different Fasten Seatbelt Reminder announcements incorporated into the cluster's logic, a Non-enhanced announcement and an Enhanced
announcement.
When the Enhanced announcement is DISABLED:
-
The cluster will chime five times (not greater than six seconds) and illuminate the Seatbelt Lamp after turning the ignition to the run/start position
if the driver/passenger seatbelt is unbuckled.
When the Enhanced announcement is ENABLED;
-
The cluster will chime continuously at a slow rate for a period of 6 seconds and illuminate the Seatbelt Lamp after turning the ignition to the
run/start position if the driver/passenger seatbelt is unbuckled. After 6 seconds the chime will stop, but the Seatbelt Lamp will stay illuminated. If
the ignition is in the run position for a period greater than 60 seconds, and the driver/passenger seatbelt is unbuckled, and the vehicle's speed is
greater than 5 mph (8 km/h) in a forward gear, the Enhanced Fasten Seatbelt Reminder will activate. This will cause the Seatbelt Lamp to blink
and a slow continuous chime to sound for 5 seconds. After 5 seconds, the chime will stop, but the lamp will remain illuminated for an additional 3
seconds. The Enhanced Seatbelt Reminder cycles for a total of 12 times (96 seconds). After the 12th time, the Seatbelt Lamp will remain on
without any chime. Buckling the driver/passenger seatbelt at anytime will cancel the Fasten Seatbelt Reminder announcement.
The seatbelt indicator includes a programmable enhanced seatbelt reminder or "belt-minder" feature that is enabled when the vehicle is shipped from the
factory. This belt-minder feature can be disabled and enabled by the customer using a specific programming event sequence, or by the dealer using a
diagnostic scan tool.
-
Gate Ajar Indicator Warning - The CCN will generate one short chime when the ignition switch is in the On position, a hard wired input is
received indicating that the status of the liftgate ajar switch has changed (switch position has to change to true), and an electronic message is
received over the CAN data bus indicating that the vehicle is moving.
-
Head/Park Lamps-On Warning - The CCN will generate repetitive chimes at a fast rate to indicate that hard wired inputs from the driver door
ajar switch, the headlamp switch, and the ignition switch indicate that the exterior lamps are turned On with the driver side front door opened and
the ignition switch in the Off position. The chimes will continue to sound until the exterior lamps are turned Off, the driver side front door is
closed, or the ignition switch is turned to the On position, whichever occurs first.
-
Key-In-Ignition Warning - The CCN will generate repetitive chimes at a fast rate to indicate that hard wired inputs from the driver door ajar
switch, the ignition switch, and the key-in ignition switch circuitry of the ignition switch indicate that the key is in the ignition in the lock position
with the driver side front door open and the ignition switch in the Off position. The chimes will continue to sound until the key is removed from
the ignition lock cylinder, the driver side front door is closed, or the ignition switch is turned to the On position, whichever occurs first.
-
Low Fuel Indicator Warning - The CCN will generate one short chime when the low fuel indicator is illuminated by the instrument cluster
circuitry. This chime will only occur once during any ignition cycle.
